Hot tub cover



FIG. 1 is a front, top and left side perspective view of a hot tub covershowing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a right side elevational view; and

FIG. 4 is a top plan view.

The bottom of the cover is open.

The ornamental design for a hot tub cover, substantially as shown anddescribed.